Intel Infiniband Solution - TrueScale Infiniband

Information on Intel® TrueScale InfiniBand Solutions.
You would have probably known Intel buy-over of Qlogic. Not much detailed information are revealed yet on Intel site, but you can find similar information at Qlogic site, but without Intel specific part number

1. Intel® TrueScale InfiniBand Edge and Director Switches
2. Intel® TrueScale InfiniBand Fabric Management and Software Tools 
3. Intel® TrueScale InfiniBand Host Adapters
4. Intel® InfiniBand Cables

Basic Active Directory Authentication with Centrify Express for CentOS 6

Centrify Express is a comprehensive suite of free Active Directory-based integration solutions for authentication, single sign-on, remote access, file-sharing, monitoring. In this tutorial, you will learn how to install Centrify Express  on CentOS

Do read on Basic Active Directory Authentication with Centrify Express for CentOS 6

Another look at Changing hostname for CentOS

This is an extension of the article Changing the hostname on CentOS. You can replace Step 2 and 3 found in the article with a one-line hostname command

# hostname www.hostserver.com

To test the hostname

# hostname

www.hostserver.com

Compiling QUEST with Intel XE Compilers on CentOS

This is a continuation of Compiling QUEST with GNU Compilers on CentOS, If  you are planning instead to use Intel XE Compilers, you have to edit the make.inc file. Here are my settings. Do note that the Intel XE and previous version of Intel are major architecture changes. Do look at Linking Applications with Intel MKL version 10

At make,inc, line 23

# Intel Fortran compiler
FC = ifort
FC_FLAGS    = -O3 -warn -openmp
NOOPT_FLAGS = -O0 -warn -openmp

At make.inc line 46

# Intel C++ compiler
 CXX = icc
 CXX_FLAGS = -O3 -openmp $(CUDAINC) $(MAGMAINC)

At make.inc, line 56

# Intel MKL library
MKLPATH   = /opt/intel/mkl/10.2.6.038/lib/em64t
LAPACKLIB = -L$(MKLPATH) -L$mkll  -lguide -lpthread -lguide -lpthread -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core

Finally, follow the verification process at stated in the Compiling QUEST with Intel Compilers on CentOS

Compiling QUEST with GNU Compilers on CentOS

QUEST (QUantum Electron Simulation Toolbox) is a Fortran 90/95 package that implements the Determinant Quantum Monte Carlo (DQMC) method for quantum electron simulations.

Compiling under gcc is complete breeze. Just do a simple.

# tar -xzf QUEST-1.3.0.tgz

# cd QUEST-1.3.0

# make

For different environments, please edit the make.inc file to suit your system. FOR GNU, you do not need to

For testing, you can go to  QUEST-1.3.0/EXAMPLE/verify

# ./verify

.....
.....
Parameters : t =  1.00, mu = -0.50, U =  0.00, beta =  1.50,
============================================================================
                    Theoretical | Computed (avg +- error) |  |T-C| : error
----------------------------------------------------------------------------
          Density :   0.828924  |  0.828924 +-  0.000000  |    0.00 :  0.00
           Energy :  -0.964017  | -0.964017 +-  0.000000  |    0.00 :  0.00
============================================================================
 91.11% within 1 error bar (Expected 63.2%).
100.00% within 2 error bar (Expected 86.5%).
 Running time:   322.1790     (second)